Boy, this is exactly the discussion my wife and I have had in the past. It is hard to keep from getting angry and jaded when "you are awake". For me personally, I have learned to compartmentalize the bad shit going on in the world and step back...taking a break keeps it from eating me up. My wife always says that unconditional love cures a lot of ills in a relationship. She has been proven to be right.
In this respect, keeping the home front relationships as the top priority and rising above the bad shit going on with unconditional love will pay dividends.

Simple reasoning says that if you are a good judge of character, you should be alright when it comes to selecting a mate. If you stick your d*ck into crazy, you got nobody to blame but yourself when things go south.